Pregnant or Problem ridden?

Hello! I really don’t think it’s even possible I’m pregnant right now, but I’m SO confused. I just need advice and I only have shit for doctors locally.

In 10/18 I had a D&C due to a Molar pregnancy and am just slowly deciding to maybe try again. ((This whole thing messed up me mentally so I was on BC until 4/19 to give us some safe time)) However I’m super confused. 1/1/19 I had a fairly positive test, (Not dark but not faded) however my doctor tested my HCG the next day and said it was only at 5. Then in 3/19 I took two tests in the same day. One was definitely positive, but very light, and the other was negative.

I know tests can be false but I’ve got all sorts of weird things happening in my body right now, and that was 2 of them while on BC...And up to 5 months post surgery??

Should I just shrug off the positives like my doctor did? I’m fairly sure I’m not pregnant at this time. So does that mean something else could be wrong?

It could be nothing, I just need quality advice. My small town doctors are generally pretty clueless.