I need advice?

So, I have wanted children for years now and my husband didn't really think anything of it. But now he hasn't been "being careful" like usual and when I asked him a few days ago he said he's "not preventing them anymore." For the past few days I've been feeling very weird. I usual don't notice but for the past 4 days I've felt cramps that come and go and I feel my ovaries, like I can tell exactly where they are without trying. I've never been able to do that? I've been so tired and sleeping from 11pm til like 12am the next day and still feeling so tired. I sometimes get sick or weird feeling after I eat and then I'll be up all night sweating. I'm always cold I'm never hot? Sex doesn't hurt but it feels different. Still enjoyable but different. And about 4 days ago I went to pee and there was the tiniest bit of pink blood. My period isn't due for another 11 days, should I wait and see if I get it or should i take a pregnancy test? If so when's the earliest I can take it? I can't go to the doctor because my husband's in the process of putting me on his insurance? What would be my best bet? Am I over thinking it or could I be pregnant?