What should I do in a case of an unintended pregnancy?

I'm 25 and have been in a relationship for over 6 years. My boyfriend and I lives separately. Due to our workload we get very little time to spend together in person. A couple of weeks back we had sex which led to us being pregnant, we are really precautious bit this had to happen. My boyfriend is kinda old school and wants to get married ASAP. I don't think I'm mentally ready for that yet. I'm not sure how to handle this situation, even about the baby. Need your honest opinion on what should I do next.
What should I do in a case of an unintended pregnancy?
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