I might be pregnant

It’s been 9 days since my period was supposed to come and it hasn’t come and I have seen no signs of it coming. I’m not having any other symptoms other than a missed period. I took 2 pregnancy tests but they were both negative and will soon take another 2 and I will update this post. I just wanna know if I should go to the doctors or what could be going on or maybe even give some advice? I’m 20 and I’m really not financially ready for a baby and probably wouldn’t have the support of my parents. Please don’t be rude, if you have any rude comments keep them to yourself. I genuinely don’t know what to do.