Opinions / advice / help??

On 6/4 I got a very faint positive in the evening. The next morning, 6/5, I got another faint positive; the tiniest bit darker, but still very faint. Both had pink to them. Because I have a history of losses (3 miscarriages and one ectopic) I called first thing to get my beta done. Got my results yesterday evening, but they were only 3, so not considered pregnant. Took another test last night, another faint positive, and another this morning. Used 2 FRER and the rest were different brands from different stores, so I’m doubtful they were all faulty. Could this be a chemical? Or could the blood test result have been entered incorrectly? I’m not spotting at all. Having nausea and super sore breasts. Clear slippery CM. Night sweats. None of these are normal PMS symptoms. I’m so confused. If anyone can offer an opinion or advice, I would so appreciate it. ❤️