POAS doesn't work for me: when should i get prenatal care/blood test?

[la mamita]

i'm 15DPO and, i believe, pregnant 4 weeks along.

complication: i am one of the few women who always get false negatives with POAS/urine pregnancy testing. i have had that issue with two previous pregnancies (one m/c, one not). with my first pregnancy (not the loss), i had to get two blood tests done because the first one came back negative as well--although i think it was a qualitative test. with my second (m/c at 9 weeks), there was no official confirmation of pregnancy until i miscarried because all i did was urine testing at a lab--although i KNEW i was pregnant due to many symptoms.

money is really tight right now, but since this is a rainbow baby, i want to make sure things are going right.

should i get a blood test or an ultrasound done? if so, when? now? 6 weeks? later? i'm worried about getting a false negative again--i would rather wait until i knew whatever test would give certain results than run out right now and have to deal with the emotional rollercoaster of a series of false negatives. what could an ultrasound now show?

last pregnancy (the loss), i was super confident about trusting my body and my intuition. i still feel that way, but i want a tiny bit of reassurance too...

[babyjelly]

Someone correct me if I'm wrong, but your cervix should look pregnant by like six weeks...?
I know my MW would gladly take a look at any point you felt like coming in. Maybe you could call your care provider and ask their opinion?
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[la mamita]

thanks! i live in peru right now and the birthing care isn't very midwifery focused, much more medicalized, so i don't know if the doctors here will have that kind of skills. i think blood test or ultrasound are my only choices as far as pregnancy confirmation/checking on how things are going in the early stages. plus i don't have a regular care provider--still need to work that one out. i wish it was as simple as calling my last midwife in the US...

[kalamos23]

if you are pregnant, a quantitative blood test will show by 14dpo for sure. i'm 99% positive that even if you can't get a pregnancy test to show up positive, that a quantitative blood test will show positive since the hcg will be in your blood even if you metabolize it so efficiently that it does not reach your urine.